Abstract
In the DFT-based single carrier frequency division multiple access (SC-FDMA) modulation system, the discrete Fourier transform (DFT) is usually exploited to divide the frequency channel. In this paper, we propose to use discrete sine/cosine transforms in place of the DFT for SC-FDMA. Eight SC-FDMA systems based on various DST/DCT types are studied. The bit error rate (BER) and the peak to average power ratio (PAPR) are used to evaluate performance of these eight DST/DCT-based SC-FDMA systems in comparison with the conventional DFT-based SC-FDMA system in an AWGN environment. Simulation results show that the DST/DCT-based SC-FDMA systems with the use of localized FDMA scheme can provide better BER performance and yet keep the same PAPR performance as compared to the DFT-based SC-FDMA system.
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Acknowledgments
This work was supported by National Natural Science Foundation of China (No. 61071195) and Sino-Finland Cooperation Project (No. 1018).
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Zhuang, L., Liu, L., Li, J. et al. Discrete Sine and Cosine Transforms in Single Carrier Modulation Systems. Wireless Pers Commun 78, 1313–1329 (2014). https://doi.org/10.1007/s11277-014-1819-7
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DOI: https://doi.org/10.1007/s11277-014-1819-7